/* ERENKOL v1 «المختبر» (The Lab). A bright testing lab: sand ground, navy from the bag, real gold only in the cleared oil.
   Full-screen chapters in normal scroll. Nothing is tied to the scroll position: a chapter starts when it is in view and the
   visitor has stopped scrolling, plays by itself, then keeps a living loop. */
:root{
  --paper:#FAF6EE; --sand:#F1E8D8; --sand-2:#E7DAC3; --sand-3:#D8C6A6;
  --ink:#1A2349; --ink-2:#4B5272; --muted:#7D7563;
  --navy:#1F2B5E; --navy-d:#151E45; --gold:#D6A21E; --gold-l:#F1D27A; --gold-d:#A87A0C;
  --line:rgba(31,43,94,.14);
  --ease:cubic-bezier(.22,1,.36,1);
  --gut:clamp(20px,4.4vw,64px); --max:1240px; --hd:76px;
  --h2:clamp(28px,3.2vw,46px); --body:clamp(15.5px,1.15vw,18px);
}
*{box-sizing:border-box;margin:0;padding:0}
html{background:var(--paper);-webkit-text-size-adjust:100%}
body{background:var(--paper);color:var(--ink);font-family:'Readex',system-ui,sans-serif;font-weight:400;line-height:1.75;overflow-x:hidden}
img{display:block;max-width:100%}
a{color:inherit}
button{font:inherit;color:inherit}
h1,h2,h3{font-family:'Kufam','Readex',sans-serif;font-weight:700;line-height:1.3;letter-spacing:0}
h2{font-size:var(--h2)}
.wrap{width:100%;max-width:calc(var(--max) + 2*var(--gut));margin-inline:auto;padding-inline:var(--gut)}
:focus-visible{outline:2px solid var(--gold-d);outline-offset:3px;border-radius:4px}
.nw{white-space:nowrap;unicode-bidi:isolate}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:50px;padding:0 26px;border-radius:999px;border:0;background:var(--navy);color:#fff;text-decoration:none;font-weight:600;font-size:16px;cursor:pointer;transition:background .35s var(--ease),transform .35s var(--ease),border-color .35s}
.btn:hover{background:var(--navy-d)}
.btn:active{transform:scale(.98)}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid rgba(31,43,94,.38)}
.btn-ghost:hover{background:rgba(31,43,94,.06)}
.btn-wide{width:100%}
.ctas{display:flex;flex-wrap:wrap;gap:12px}
.link{font-weight:600;text-decoration:none;color:var(--navy);border-bottom:1.5px solid var(--gold);padding-bottom:1px;white-space:nowrap}

/* ---------- header: the real ERENKOL label from the bag + the Al Roaya lockup; one calm button ---------- */
.hd{position:fixed;inset:0 0 auto;z-index:40;padding-top:env(safe-area-inset-top);transition:background .5s var(--ease),box-shadow .5s,opacity 1s var(--ease),transform 1s var(--ease)}
.hd-in{height:var(--hd);display:flex;align-items:center;gap:28px}
.hd-logo{display:flex;align-items:center;gap:14px;text-decoration:none;flex:none}
.hd-panel{height:52px;width:auto;border-radius:7px;box-shadow:0 2px 10px rgba(21,30,69,.18)}
.hd-roaya{height:44px;width:auto}
.hd.solid,.menu-open .hd{background:rgba(250,246,238,.94);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);box-shadow:0 1px 0 var(--line)}
.hd-nav{display:flex;gap:26px;margin-inline-start:auto}
.hd-nav a{text-decoration:none;font-size:15px;color:var(--ink-2);transition:color .35s var(--ease)}
.hd-nav a:hover{color:var(--navy)}
.hd-cta{display:inline-flex;align-items:center;min-height:42px;padding:0 20px;border-radius:999px;background:var(--navy);color:#fff;text-decoration:none;font-size:14.5px;font-weight:600;transition:background .35s var(--ease)}
.hd-cta:hover{background:var(--navy-d)}
.hd-menu{display:none;width:44px;height:44px;border:0;background:none;cursor:pointer;position:relative;margin-inline-start:auto}
.hd-menu i{position:absolute;left:11px;right:11px;height:2px;border-radius:2px;background:var(--ink);transition:transform .4s var(--ease)}
.hd-menu i:first-child{top:17px}.hd-menu i:last-child{top:25px}
.hd-menu[aria-expanded="true"] i:first-child{transform:translateY(4px) rotate(45deg)}
.hd-menu[aria-expanded="true"] i:last-child{transform:translateY(-4px) rotate(-45deg)}
.sheet{position:fixed;inset:0;z-index:39;background:var(--paper);display:flex;flex-direction:column;justify-content:center;gap:36px;padding:calc(var(--hd) + 24px) var(--gut) calc(32px + env(safe-area-inset-bottom))}
.sheet[hidden]{display:none}
.sheet nav{display:flex;flex-direction:column;gap:4px}
.sheet nav a{font-family:'Kufam',sans-serif;font-weight:700;font-size:26px;text-decoration:none;padding:6px 0;color:var(--ink)}
.sheet-ctas{display:flex;flex-direction:column;gap:10px}
/* during the opening the header waits; the lockup arrives as the lab light comes on */
.op-js .hd{opacity:0;transform:translateY(-8px)}
.op-js .hd.up{opacity:1;transform:none}
@media (max-width:1100px){.hd-nav{gap:18px}.hd-nav a{font-size:14px}}
@media (max-width:960px){
  :root{--hd:64px}
  .hd-nav,.hd-cta{display:none}.hd-menu{display:block}
  .hd-panel{height:44px}.hd-roaya{height:36px}
}

/* ---------- the chapter kit: words on top, the scene filling the rest of one screen ---------- */
.ch{position:relative;height:100vh;height:100svh;min-height:600px;overflow:hidden;display:flex;flex-direction:column;padding-top:calc(var(--hd) + env(safe-area-inset-top));background:var(--paper)}
.ch-tx{display:grid;grid-template-columns:5fr 1fr 6fr;align-items:center;padding-block:clamp(18px,3.4vh,40px)}
.ch-tx h2{grid-column:1}
.ch-tx .tx{grid-column:3;display:flex;flex-wrap:wrap;align-items:center;gap:14px 22px}
.ch-tx p{font-size:var(--body);color:var(--ink-2);max-width:54ch}
.ch-pic{position:relative;flex:1;min-height:0;overflow:hidden}
.ch-pic>img,.ch-pic>picture>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.ch-pic picture{display:contents}
/* chapters are told apart by their own ground */
.c-earth{background:var(--sand)}
.c-proof{background:var(--paper)}
.c-specs{background:var(--sand)}
.c-oils{background:var(--paper)}
.c-origin{background:var(--sand)}
/* things that build in: hidden until their chapter plays (js) */
.js:not(.still) .bi{opacity:0}

/* ---------- 0 · opening ---------- */
.op{position:relative;height:100vh;height:100svh;min-height:560px;overflow:hidden;background:#2a241c;isolation:isolate}
.op-fr{position:absolute;inset:0}
.op-fr img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.op-fr picture{display:contents}
.op-gold,.op-all{position:absolute;inset:0;opacity:0}
.op-gold{will-change:opacity}
.op-pow{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
.op-dim{position:absolute;inset:0;background:#120f0a;opacity:0;pointer-events:none}
.op-js .op-dim{opacity:.9}
/* a soft veil behind the words so they read over the bright lab without a box */
.op::after{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;background:linear-gradient(90deg,rgba(250,246,238,.7) 0%,rgba(250,246,238,.45) 32%,rgba(250,246,238,0) 50%);opacity:var(--veil,1)}
.op-js .op{--veil:0}
.op-js .op-best{--sx:0}
.op-copy{position:absolute;inset:0;z-index:3;display:flex;align-items:center;justify-content:flex-end;padding-top:var(--hd);pointer-events:none}
.op-text{max-width:min(560px,40vw);pointer-events:auto}
.op h1{font-size:clamp(36px,4.1vw,66px);line-height:1.35;color:var(--ink)}
/* the key phrase gets its own framed, lit line */
.op-best{position:relative;display:inline-block;padding:.08em .32em .14em;isolation:isolate}
.op-best::before{content:"";position:absolute;inset:0;z-index:-1;border-radius:.22em;background:var(--navy);transform-origin:100% 50%;transform:scaleX(var(--sx,1))}
.op-best-t{color:#fff;background:linear-gradient(100deg,#fff 0%,#fff 40%,var(--gold-l) 50%,#fff 60%,#fff 100%);background-size:300% 100%;background-position:100% 0;-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.op-best.on .op-best-t{animation:sh 5.5s ease-in-out 1s infinite}
@keyframes sh{0%{background-position:100% 0}45%,100%{background-position:0 0}}
.op-sub{margin-top:18px;font-size:clamp(17px,1.45vw,21px);color:var(--ink-2);max-width:40ch}
.op-sub b{color:var(--ink);font-weight:600}
.op .ctas{margin-top:28px}
.op-js .op-text>*{opacity:0}
.op-skip{position:absolute;z-index:8;inset-inline-start:var(--gut);bottom:calc(20px + env(safe-area-inset-bottom));min-height:44px;padding:0 16px;border:0;border-radius:999px;background:rgba(250,246,238,.16);color:rgba(250,246,238,.85);font-size:14px;cursor:pointer;display:none;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
.op-js .op-skip{display:block}
.op.settled .op-skip{display:none}

/* ---------- 1 · what it is: the bag, and the three facts that branch out of it ---------- */
.earth{display:flex;align-items:center;justify-content:center}
.ea-stage{position:relative;width:100%;max-width:calc(var(--max) + 2*var(--gut));height:100%;margin-inline:auto;padding-inline:var(--gut);display:grid;grid-template-columns:1fr 1fr;align-items:center}
.ea-bag{position:relative;grid-column:2;grid-row:1;justify-self:center;height:min(56vh,560px);margin-bottom:4vh;aspect-ratio:687/859}
.ea-bag img{position:relative;width:100%;height:100%;object-fit:contain}
.ea-sh{position:absolute;left:-6%;right:-6%;bottom:-3%;height:9%;border-radius:50%;background:radial-gradient(closest-side,rgba(60,42,15,.42),rgba(60,42,15,0))}
.ea-sweep{position:absolute;inset:0;pointer-events:none;-webkit-mask:url(../img/bag.webp) center/contain no-repeat;mask:url(../img/bag.webp) center/contain no-repeat;
  background:linear-gradient(105deg,rgba(255,255,255,0) 35%,rgba(255,248,226,.38) 50%,rgba(255,255,255,0) 65%);background-size:300% 100%;background-position:120% 0;mix-blend-mode:soft-light}
.ea-sweep.on{animation:sweep 7s ease-in-out infinite}
@keyframes sweep{0%{background-position:120% 0}55%,100%{background-position:-20% 0}}
.ea-facts{list-style:none;grid-column:1;grid-row:1;display:grid;gap:clamp(18px,4vh,44px);padding-inline-end:clamp(24px,4vw,64px)}
.ea-facts li{display:flex;flex-direction:column;gap:2px;max-width:380px;margin-inline-start:0;padding:16px 20px;border-radius:14px;background:rgba(250,246,238,.75);border:1px solid var(--line)}
.ea-facts b{font-family:'Kufam',sans-serif;font-size:clamp(19px,1.7vw,26px);color:var(--ink)}
.ea-facts span{font-size:clamp(14.5px,1.1vw,16.5px);color:var(--ink-2);line-height:1.6}
.ea-lines{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;overflow:visible}
.ea-lines path{fill:none;stroke:var(--gold-d);stroke-width:1.5;stroke-linecap:round;opacity:.7}
.ea-lines circle{fill:var(--gold)}

/* ---------- 2 · proof: the vials; «قبل» and «بعد» beside the two ends; the four jobs ---------- */
.proof{background:var(--paper)}
.beam{position:absolute;inset:0;pointer-events:none;background:linear-gradient(100deg,rgba(255,250,235,0) 40%,rgba(255,246,220,.42) 50%,rgba(255,250,235,0) 60%);transform:translateX(60%);mix-blend-mode:soft-light}
.beam.on{animation:beam 9s ease-in-out infinite}
@keyframes beam{0%{transform:translateX(60%)}55%,100%{transform:translateX(-60%)}}
.vl{position:absolute;z-index:2;transform:translate(-50%,-100%);padding:6px 16px;border-radius:999px;background:rgba(250,246,238,.92);border:1px solid var(--line);box-shadow:0 6px 18px rgba(31,43,94,.1)}
.vl b{font-family:'Kufam',sans-serif;font-size:clamp(15px,1.2vw,18px);color:var(--ink)}
.vl-b{background:var(--navy);border-color:var(--navy)}.vl-b b{color:#fff}
.jobs{position:absolute;z-index:2;inset-inline:0;top:clamp(14px,3vh,34px);list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.jobs li{display:flex;align-items:center;gap:12px;padding:12px 16px;border-radius:14px;background:rgba(250,246,238,.86);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid var(--line)}
.jobs b{font-family:'Kufam',sans-serif;font-size:clamp(20px,1.7vw,26px);line-height:1;color:var(--gold-d)}
.jobs span{font-size:clamp(14px,1.05vw,16px);font-weight:500;line-height:1.5;color:var(--ink)}

/* ---------- 3 · specs: gauges against the limits, badges, the real report scans ---------- */
.specs{display:flex;align-items:center}
.sp-grid{display:grid;grid-template-columns:6fr 5fr;gap:clamp(20px,4vw,64px);align-items:center}
.sp-metals{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.sp-metals h3{grid-column:1/-1;font-size:clamp(18px,1.5vw,22px);color:var(--ink)}
.sp-metals h3 small{font-family:'Readex',sans-serif;font-weight:400;font-size:14px;color:var(--muted)}
.gauge{padding:18px 20px;border-radius:16px;background:var(--paper);border:1px solid var(--line);display:flex;flex-direction:column;gap:10px}
.g-top{display:flex;align-items:baseline;justify-content:space-between;gap:10px}
.g-top b{font-weight:600;font-size:16px}
.g-num em{font-style:normal;font-family:'Kufam',sans-serif;font-weight:700;font-size:clamp(26px,2.3vw,34px);color:var(--navy);line-height:1}
.g-ok{font-size:24px;color:var(--gold-d);line-height:1}
.g-bar{position:relative;height:10px;border-radius:99px;background:var(--sand-2);overflow:visible}
.g-fill{position:absolute;inset-block:0;inset-inline-start:0;width:calc(var(--k,0) * 100%);border-radius:99px;background:linear-gradient(270deg,var(--gold-l),var(--gold))}
[dir="rtl"] .g-fill{background:linear-gradient(90deg,var(--gold-l),var(--gold))}
.g-lim{position:absolute;top:-5px;bottom:-5px;inset-inline-end:0;width:3px;border-radius:2px;background:var(--navy)}
.gauge small{font-size:13.5px;color:var(--ink-2);line-height:1.5}
.sp-side{display:grid;gap:16px}
.badges{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:10px}
.badges li{display:flex;flex-direction:column;padding:12px 16px;border-radius:14px;background:var(--navy);color:#fff}
.badges b{font-family:'Readex',sans-serif;font-weight:600;font-size:clamp(15px,1.2vw,18px);letter-spacing:.01em;text-align:right}
.badges span{font-size:13px;color:#C9CEE2;line-height:1.5}
.certs{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.cert{display:flex;align-items:center;gap:12px;padding:10px;border-radius:14px;border:1px solid var(--line);background:var(--paper);cursor:pointer;text-align:start;transition:transform .35s var(--ease),border-color .35s}
.cert:hover{transform:translateY(-2px);border-color:rgba(168,122,12,.5)}
.cert img{width:58px;height:72px;object-fit:cover;object-position:top;border-radius:6px;box-shadow:0 2px 8px rgba(31,43,94,.18);flex:none;background:#fff}
.cert span{display:flex;flex-direction:column;line-height:1.45}
.cert b{font-size:15px;font-weight:600}
.cert small{font-size:12.5px;color:var(--ink-2)}
.viewer{position:fixed;inset:0;z-index:60;background:rgba(16,20,44,.92);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:calc(16px + env(safe-area-inset-top)) 16px calc(16px + env(safe-area-inset-bottom))}
.viewer[hidden]{display:none}
.vw-in{display:flex;flex-direction:column;align-items:center;gap:10px;min-height:0;flex:1;justify-content:center;width:100%}
.vw-in img{max-height:calc(100svh - 170px);max-width:min(100%,760px);width:auto;height:auto;border-radius:8px;background:#fff;box-shadow:0 20px 60px rgba(0,0,0,.4)}
.vw-in p{color:#e9e4d8;font-size:14px;text-align:center}
.vw-x{position:absolute;top:calc(10px + env(safe-area-inset-top));inset-inline-end:12px;width:48px;height:48px;border:0;border-radius:50%;background:rgba(255,255,255,.12);color:#fff;font-size:28px;line-height:1;cursor:pointer}
.vw-nav{display:flex;align-items:center;gap:18px;color:#fff}
.vw-nav button{width:44px;height:44px;border:0;border-radius:50%;background:rgba(255,255,255,.12);color:#fff;font-size:24px;cursor:pointer}
.vw-n{font-size:14px;min-width:3ch;text-align:center}

/* ---------- 4 · which oil: tabs + two glasses (canvas), the after-glass clears as the earth falls through it ---------- */
.oils{display:flex;align-items:center}
.oi-grid{display:grid;grid-template-columns:4fr 7fr;gap:clamp(20px,4vw,64px);align-items:center}
.oi-tabs{display:flex;flex-direction:column;gap:10px}
.oi-tabs button{display:flex;align-items:center;min-height:62px;padding:0 22px;border-radius:14px;border:1px solid var(--line);background:var(--sand);cursor:pointer;text-align:start;transition:background .4s var(--ease),color .4s,border-color .4s}
.oi-tabs b{font-family:'Kufam',sans-serif;font-size:clamp(16px,1.3vw,19px)}
.oi-tabs button:hover{border-color:rgba(31,43,94,.35)}
.oi-tabs button[aria-selected="true"]{background:var(--navy);color:#fff;border-color:var(--navy)}
.oi-stage{display:grid;grid-template-columns:auto 1fr;gap:clamp(20px,3vw,48px);align-items:center}
.oi-glasses{display:flex;gap:clamp(14px,2vw,28px);align-items:flex-end}
.oi-g{display:flex;flex-direction:column;align-items:center;gap:10px}
.oi-g canvas{display:block;width:clamp(120px,12vw,180px);height:auto;aspect-ratio:3/4}
.oi-g figcaption{font-family:'Kufam',sans-serif;font-size:15px;color:var(--ink)}
.oi-after figcaption{color:var(--gold-d)}
.oi-tx{display:flex;flex-direction:column;align-items:flex-start;gap:16px}
.oi-line{font-size:clamp(17px,1.4vw,21px);color:var(--ink);line-height:1.7;min-height:3.4em}
.oi-note{font-size:12.5px;color:var(--muted)}

/* ---------- 5 · origin (two slides): route steps / why choose ---------- */
.duo-track{position:relative;flex:1;min-height:0;display:grid;grid-template-columns:minmax(0,1fr);grid-template-rows:minmax(0,1fr)}
.duo-slide{grid-area:1/1;display:flex;flex-direction:column;min-height:0;min-width:0;transition:opacity .8s var(--ease),transform .8s var(--ease)}
.duo-slide:not(.is-on){opacity:0;transform:translateX(-24px);pointer-events:none;visibility:hidden;transition:opacity .6s var(--ease),transform .6s var(--ease),visibility 0s .6s}
.duo-nav{display:flex;align-items:center;gap:4px;flex:none}
.duo-dot{width:28px;height:28px;border:0;background:none;cursor:pointer;display:inline-flex;align-items:center;justify-content:center}
.duo-dot i{width:24px;height:8px;border-radius:99px;background:rgba(31,43,94,.25);transform:scaleX(.34);transition:transform .45s var(--ease),background .45s}
.duo-dot.is-on i{transform:none;background:var(--navy)}
.route,.why{display:flex;align-items:center}
.rt-grid{display:grid;grid-template-columns:1fr 1.25fr 1fr;gap:clamp(12px,2vw,28px);align-items:stretch;height:min(100%,520px);padding-bottom:clamp(14px,3vh,34px)}
.rt-step{position:relative;display:flex;flex-direction:column;gap:10px;min-height:0}
.rt-step img,.rt-step .map{flex:1;min-height:0;width:100%;object-fit:cover;border-radius:16px;background:var(--sand-2)}
.rt-step figcaption{display:flex;align-items:center;gap:10px;font-family:'Kufam',sans-serif;font-size:clamp(15px,1.25vw,18px)}
.rt-step figcaption b{color:var(--gold-d);font-size:1.15em}
.map{position:relative;overflow:hidden;background:#EAF0F4}
.map svg{position:absolute;inset:0;width:100%;height:100%}
.why-grid{display:grid;grid-template-columns:5fr 6fr;gap:clamp(16px,3vw,48px);align-items:center;height:min(100%,500px);padding-bottom:clamp(14px,3vh,34px)}
.why-pic{width:100%;height:100%;object-fit:cover;border-radius:16px}
.why-list{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:10px}
.why-list li{display:flex;align-items:center;gap:12px;padding:16px 18px;border-radius:14px;background:var(--paper);border:1px solid var(--line);min-height:76px}
.why-list b{font-family:'Kufam',sans-serif;font-size:22px;color:var(--gold-d);line-height:1}
.why-list span{font-weight:500;font-size:clamp(14.5px,1.1vw,16.5px);line-height:1.5}

/* ---------- 6 · closing ---------- */
.c-end{background:#0E1430;padding-top:0}
.end-fr{position:absolute;inset:0}
.end-fr img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.end-fr picture{display:contents}
.end-lit{position:absolute;inset:0;filter:brightness(2.1) saturate(.55) sepia(.25)}
.end-bag{position:absolute;z-index:1;opacity:0}
.end-bag img{position:relative;width:100%;height:100%;object-fit:contain;filter:brightness(.92) sepia(.12)}
.end-bsh{position:absolute;left:-8%;right:-8%;bottom:-3%;height:8%;border-radius:50%;background:radial-gradient(closest-side,rgba(0,0,0,.6),rgba(0,0,0,0))}
.end-dim{position:absolute;inset:0;z-index:2;background:radial-gradient(ellipse 55% 42% at 50% 22%,rgba(9,13,34,.7),rgba(9,13,34,.2) 70%,rgba(9,13,34,0));opacity:0;pointer-events:none}
.end-tx{position:absolute;inset:0;z-index:3;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;text-align:center;gap:14px;padding-top:calc(var(--hd) + 7vh)}
.end-panel{height:clamp(70px,9vh,104px);width:auto;border-radius:10px;box-shadow:0 12px 34px rgba(0,0,0,.4)}
.end-tx h2{font-size:clamp(30px,3.6vw,54px);color:#fff}
.end-tx p{font-size:var(--body);color:#D9DDEB}
.shine{background:linear-gradient(100deg,var(--gold-l) 0%,var(--gold-l) 38%,#FFF6DA 49%,#fff 50%,#FFF6DA 51%,var(--gold-l) 62%,var(--gold-l) 100%);background-size:300% 100%;background-position:100% 0;-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.shine.on{animation:sh 4.8s ease-in-out infinite}
.c-end .ctas{justify-content:center;margin-top:8px}
.c-end .ctas .btn{min-width:210px}
.c-end .btn-ghost{color:#fff;border-color:rgba(255,255,255,.5)}
.c-end .btn-ghost:hover{background:rgba(255,255,255,.08)}
/* the main button invites a tap: a line of light runs around its edge from the moment it appears, plus a small nudge. No pulse. */
@property --ring{syntax:'<angle>';inherits:false;initial-value:0deg}
.btn-invite{border:2px solid transparent;color:var(--navy-d);
  background:linear-gradient(var(--gold-l),var(--gold-l)) padding-box,conic-gradient(from var(--ring),rgba(255,255,255,.2) 0deg,rgba(255,255,255,.2) 250deg,#fff 300deg,#FFF4D0 330deg,rgba(255,255,255,.2) 360deg) border-box;
  box-shadow:0 10px 30px -8px rgba(214,162,30,.55)}
.btn-invite:hover{background:linear-gradient(#F6DD94,#F6DD94) padding-box,conic-gradient(from var(--ring),rgba(255,255,255,.2) 0deg,rgba(255,255,255,.2) 250deg,#fff 300deg,#FFF4D0 330deg,rgba(255,255,255,.2) 360deg) border-box}
.btn-invite.on{animation:ring 3s linear infinite,nudge 4s cubic-bezier(.36,.07,.19,.97) .4s infinite}
@keyframes ring{to{--ring:360deg}}
@keyframes nudge{0%,12%,100%{transform:none}3%{transform:translateY(-3px)}6%{transform:translateY(0)}9%{transform:translateY(-1.5px)}}
.btn-sheen{position:relative;overflow:hidden;isolation:isolate}
.btn-sheen::after{content:"";position:absolute;inset:-20% 0 -20% auto;width:46%;z-index:-1;pointer-events:none;background:linear-gradient(100deg,rgba(255,255,255,0),rgba(255,255,255,.4),rgba(255,255,255,0));transform:translateX(160%) skewX(18deg)}
.btn-sheen.on::after{animation:sheen 3.4s cubic-bezier(.45,0,.2,1) .2s infinite}
@keyframes sheen{0%{transform:translateX(160%) skewX(18deg)}40%,100%{transform:translateX(-330%) skewX(18deg)}}

/* ---------- 7 · form + contact ---------- */
.contact{position:relative;z-index:2;background:var(--paper);padding-block:clamp(64px,8vw,120px);scroll-margin-top:var(--hd)}
#form{scroll-margin-top:calc(var(--hd) + 16px)}
.contact .split{display:grid;grid-template-columns:6fr 5fr;gap:clamp(28px,5vw,80px);align-items:start}
.contact .tx>p{margin-top:12px;font-size:var(--body);color:var(--ink-2)}
.form{background:var(--sand);border:1px solid var(--line);border-radius:18px;padding:clamp(22px,3vw,40px);display:grid;gap:18px}
.f-lead{font-size:var(--body);color:var(--ink-2);margin-top:-6px}
.kind{border:0;display:flex;flex-wrap:wrap;gap:8px}
.kind legend{font-size:14px;color:var(--muted);margin-bottom:8px}
.kind label{cursor:pointer}
.kind input{position:absolute;opacity:0;pointer-events:none}
.kind span{display:inline-flex;align-items:center;min-height:44px;padding:0 18px;border-radius:999px;border:1px solid rgba(31,43,94,.25);font-size:15px;background:var(--paper);transition:background .35s var(--ease),border-color .35s,color .35s}
.kind input:checked+span{background:var(--navy);color:#fff;border-color:var(--navy)}
.kind input:focus-visible+span{outline:2px solid var(--gold-d);outline-offset:2px}
.fld{display:grid;gap:6px}
.fld span{font-size:14px;color:var(--muted)}
.fld input{min-height:50px;border-radius:10px;border:1px solid rgba(31,43,94,.22);background:var(--paper);color:var(--ink);font:inherit;font-size:16px;padding:0 14px}
.fld input:focus{outline:none;border-color:var(--navy)}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.err{color:#9b2c1e;font-size:14px}
.tiles{list-style:none;margin-top:24px;display:grid;grid-template-columns:1fr 1fr;gap:12px}
.tile{display:flex;flex-direction:column;align-items:flex-start;gap:4px;height:100%;padding:18px;border-radius:16px;background:var(--sand);border:1px solid var(--line);text-decoration:none;transition:background .35s var(--ease),border-color .35s,transform .35s var(--ease)}
.tile:hover{background:#fff;border-color:rgba(31,43,94,.35);transform:translateY(-2px)}
.tile .ic{display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:50%;background:var(--navy);color:#fff;margin-bottom:8px}
.tile .ic svg{width:22px;height:22px}
.tile .ic-wa{background:#1FA855}
.tile .ic-ry{background:#fff;border:1px solid var(--line)}
.tile .ic-ry img{width:30px;height:30px;object-fit:contain}
.tile b{font-family:'Kufam',sans-serif;font-weight:700;font-size:16px;line-height:1.4}
.tile small{font-size:13.5px;color:var(--ink-2);line-height:1.5;unicode-bidi:plaintext;word-break:break-word}
.gmap{margin-top:12px;border-radius:16px;overflow:hidden;border:1px solid var(--line);background:var(--sand)}
.gmap iframe{display:block;width:100%;height:240px;border:0}
.gmap-go{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:14px 16px;background:#fff;text-decoration:none;border-top:1px solid var(--line)}
.gmap-go span{display:flex;flex-direction:column}
.gmap-go b{font-family:'Kufam',sans-serif;font-size:15px}
.gmap-go small{font-size:13px;color:var(--ink-2);line-height:1.6}
.gmap-go em{flex:none;font-style:normal;font-weight:600;font-size:14px;color:#fff;background:var(--navy);border-radius:999px;padding:8px 16px}
@media (max-width:860px){.contact .split{grid-template-columns:1fr}}

.ft{position:relative;z-index:2;background:var(--navy-d);color:#D6DAE8;padding-block:52px calc(40px + env(safe-area-inset-bottom))}
.ft-in{display:grid;grid-template-columns:auto 1fr auto;gap:32px;align-items:center}
.ft-logos{display:flex;align-items:center;gap:18px}
.ft-panel{height:70px;width:auto;border-radius:8px}
.ft-logo{height:64px;width:auto}
.ft-nav{display:flex;flex-wrap:wrap;gap:8px 22px;justify-content:center}
.ft-nav a{text-decoration:none;font-size:14px;color:#B9BFD6}
.ft-credit{font-size:13px;color:#B9BFD6;text-align:left}
.ft-credit a{color:#B9BFD6}

.dock{position:fixed;z-index:30;inset-inline:12px;bottom:calc(14px + env(safe-area-inset-bottom));display:flex;align-items:center;gap:8px;padding:6px;border-radius:999px;background:rgba(250,246,238,.95);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--line);box-shadow:0 8px 28px rgba(31,43,94,.16);opacity:0;transform:translateY(16px);pointer-events:none;transition:opacity .5s var(--ease),transform .5s var(--ease)}
.dock.on{opacity:1;transform:none;pointer-events:auto}
@media (min-width:961px){.dock{display:none}}
.dock .btn{flex:1;min-height:44px;font-size:15px}
.dock-wa{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:50%;color:#fff;background:#1FA855;text-decoration:none}

/* ---------- phone: every chapter recomposed, one screen each ---------- */
@media (max-width:700px){
  .ch{min-height:0}
  .ch-tx{display:block;padding-block:16px 12px}
  .ch-tx .tx{margin-top:6px;gap:10px}
  .ch-tx p{font-size:15px;line-height:1.7}
  .ch-tx h2{font-size:27px}
  /* opening: words at the bottom over a sand veil, the beaker above them */
  .op::after{background:linear-gradient(180deg,rgba(250,246,238,.55) 0%,rgba(250,246,238,.35) 40%,rgba(250,246,238,0) 55%)}
  .op-copy{align-items:flex-start;padding-top:calc(var(--hd) + env(safe-area-inset-top) + 22px)}
  .op-text{max-width:none}
  .op h1{font-size:clamp(30px,8.6vw,40px)}
  .op-sub{font-size:15.5px;margin-top:12px}
  .op .ctas{margin-top:18px}.op .ctas .btn{flex:1 1 auto;min-height:48px;padding:0 16px;font-size:15px}
  .op-skip{background:rgba(26,35,73,.35)}
  /* earth: the bag in the middle, the three facts as a row of chips under it */
  .ea-stage{display:flex;flex-direction:column;justify-content:center;gap:14px;padding-block:6px calc(86px + env(safe-area-inset-bottom))}
  .ea-bag{height:auto;width:min(56vw,250px);max-height:42svh}
  .ea-facts{order:2;grid-template-columns:1fr;gap:8px;padding:0;width:100%}
  .ea-facts li{max-width:none;margin:0;padding:10px 14px;flex-direction:row;align-items:baseline;gap:8px;flex-wrap:wrap}
  .ea-facts b{font-size:16px}.ea-facts span{font-size:13px}
  .ea-lines{display:none}
  /* proof: jobs as a 2x2 grid under the words, the vials below */
  .jobs{position:relative;top:auto;grid-template-columns:1fr 1fr;gap:8px;padding-top:2px}
  .jobs li{padding:9px 11px;gap:8px}.jobs b{font-size:17px}.jobs span{font-size:13px}
  .proof{display:flex;flex-direction:column}
  .proof>picture>img,.proof>img{top:auto}
  /* specs: gauges 2x2, badges 2x2, certs row; tight */
  .specs{align-items:flex-start;overflow-y:auto}
  .sp-grid{grid-template-columns:1fr;gap:12px;padding-bottom:calc(84px + env(safe-area-inset-bottom))}
  .sp-metals{gap:8px}.sp-metals h3{font-size:16px}
  .gauge{padding:11px 12px;gap:6px}.g-top{flex-direction:column;align-items:flex-start;gap:2px}.g-top b{font-size:14px}.g-num em{font-size:22px}
  .gauge small{font-size:12px}.g-bar{height:7px}
  .badges{gap:6px}.badges li{padding:8px 12px}.badges b{font-size:14px}.badges span{font-size:11.5px}
  .certs{gap:6px}.cert{padding:7px;gap:8px}.cert img{width:40px;height:50px}.cert b{font-size:13.5px}.cert small{font-size:11px}
  /* oils: tabs as a swipe row, the glasses + line under them */
  .oils{align-items:flex-start}
  .oi-grid{grid-template-columns:1fr;gap:16px}
  .oi-tabs{flex-direction:row;overflow-x:auto;scroll-snap-type:x mandatory;margin-inline:calc(-1*var(--gut));padding-inline:var(--gut);scrollbar-width:none;gap:8px}
  .oi-tabs::-webkit-scrollbar{display:none}
  .oi-tabs button{flex:none;min-height:48px;padding:0 16px;scroll-snap-align:start;border-radius:999px}
  .oi-tabs b{font-size:14.5px;white-space:nowrap}
  .oi-stage{grid-template-columns:1fr;gap:14px;justify-items:center;text-align:center}
  .oi-g canvas{width:min(33vw,140px)}
  .oi-tx{align-items:center}
  .oi-line{font-size:16px;min-height:3.4em}
  /* origin: the three steps as a swipe row */
  .rt-grid{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;margin-inline:calc(-1*var(--gut));padding-inline:var(--gut);scrollbar-width:none;gap:12px;height:100%;padding-bottom:calc(84px + env(safe-area-inset-bottom))}
  .rt-grid::-webkit-scrollbar{display:none}
  .rt-step{flex:none;width:78vw;scroll-snap-align:center}
  .why-grid{grid-template-columns:1fr;gap:10px;height:100%;padding-bottom:calc(84px + env(safe-area-inset-bottom))}
  .why-pic{height:22svh;min-height:0}
  .why-list{gap:7px}.why-list li{padding:10px 12px;min-height:58px;gap:8px}.why-list b{font-size:18px}.why-list span{font-size:13.5px}
  /* closing */
  .end-tx{gap:10px;padding-top:calc(var(--hd) + 3svh)}
  .c-end .ctas{gap:8px}.c-end .ctas .btn{min-height:46px}
  .end-tx h2{font-size:30px}
  .c-end .ctas{width:100%;max-width:380px;flex-direction:column}.c-end .ctas .btn{min-width:0;width:100%}
  .row2{grid-template-columns:1fr}
  .ft-in{grid-template-columns:1fr;text-align:center;justify-items:center}
  .ft-credit{text-align:center}
}
@media (max-width:700px) and (max-height:740px){
  .ea-bag{width:min(34vw,150px)}
  .ea-facts span{display:none}.ea-facts li{padding:8px 14px}
  .oi-g canvas{width:min(26vw,104px)}
  .oi-line{font-size:15px;min-height:0}.oi-tx{gap:10px}.oi-note{display:none}
  .why-pic{display:none}
  .end-tx h2{font-size:26px}
}
@media (prefers-reduced-motion:reduce){.beam.on,.ea-sweep.on,.shine.on,.op-best.on .op-best-t,.btn-invite.on,.btn-sheen.on::after{animation:none}}